Car-wheel axle.



No. 777,569. "PATENTED DEC. 13, 1904.

T. R. TIMBY.

GAR WHEEL AXLE.

APPLIGATION FILED SEPT. 23 1904.

N0 MODEL.

gluuznfoz @YXLOMWQ 7 m (5,7727% I MW UNTTED STATES Patented December 13, 1904.

PATENT OFFICE.

CAR-WHEEL AXLE.

SPECIFICATION forming part of Letters Patent No. 777,569, dated December 13, 1904.

Application filed September 2S, 1904:. Serial No. 225,675. (No model.)

To all whom, it may concern.-

Be it known that I, THEODORE 1t. TIMBY, a citizen of the United States, residing at Brooklyn, in the county of Kings and State of New York, have invented certain new and useful Improvements in Gar-Wheel Axles; and I do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to the letters of reference marked thereon, which form a part of this specification.

My invention relates to car-wheel axles; and it consists in the construction, arrangement, and character of the parts, which will be hereinafter more fully described, and particularly pointed out in the claim.

My invention consists in using quicksilver and water in hollow railway-axles for the purpose of absorbing such heat as will be generated by friction when in motion and distributing and radiating such heat, thus preventing objectionable and injurious temperatures or what is known as hot boxes.

The objects of my invention are the following: First, to provide a car-axle which shall be strong and durable and so constructed as to contain a liquid compound, consisting of quicksilver and water, for cooling the bearings or journals of said axles, thereby preventing the heating and burning of said bearings within the journal-boxes; second, a further object of my invention is to provide a car-axle with a tubular central chamber extending from end to end of said axle to form a reservoir to hold a liquid compound, consisting of quicksilver and water, which will flow from end to end of said chamber, thereby absorbing'the heat generated in the bearings or journals of the axle, and thus preventing the wearing of the same at the bearings and prolonging its life and usefulness.

Heretofore attempts have been made to provide car-axles having therein a hollowchamher with cooling or absorbing agents; but such attempts have failed for various reasons, among which is the freezing of the cooling agents at ordinary temperatures, also the exhaustion of said agents by evaporation and other natural causes. I overcome these difficulties by the absorbing agent I have now discovered, which is as lasting and durable as the axle itself.

The mixture of Water and quicksilver in the proportions herein mentioned produces a cooling agent which has three distinctadvantages over water as a cooling agent for the axle, viz: First, it congeals at a very low temperature, much lower than water; second, it is more sensitive to heat than water and liq uelies more readily and at a lower temperature when congealed; third, the weight of the quicksilver causes the mixture to flow from end to end of the chamber of the axle with great impetus and force, thus distributing its cooling effect more rapidly and effectively throughout the entire length, of said chamber.

In the accompanying drawings, Figure 1 is avcrtical longitudinal section of an axle embodying my invention, and Fig. 2 a crosssection taken on the line 2 2 of Fig. 1.

Similar letters of reference indicate like parts in both figures of the drawings.

ln carrying out my invention the tubular car-wheelaxle A is formed with the usual wrists or journal-boarings B at each end, and said axle is provided with a central bore C, which is continuous from one end of the axle to the other, said bore being closed at its extremities by means of the screw-plugs I), as shown. \Vithin the central bore or chamber thus formed in the axle is introduced a charge of liquid absorbent and preservative compound composed of quicksilver and water of approximately equal weights, which nearly [ills said bore or chamber, leaving suflicient space therein to provide for expansion and contraction due to extreme heat or cold.v

In manufacturing the axle herein described, and illustrated in the drawings, 1 preferto construct the axle in the usual way and form, with the wrists or end bearings, then bore the chamber throughout its entire length, hermetically seal one end of said bore with a proper closing-plug, then nearly fill the bore with the required amount of the liquid compound herein mentioned, consisting of approximately equal weights of quicksilver and water, and finally hermetically sealing the sures, and an absorbent agent, consisting of end of the axle in which the compound has quicksilver and water of approximately equal been introduced by a proper plug or cap. weights, within the hollow chamber'of the Then the axle is thus constructed and formed, axle, substantially as described. I 5 it is ready for sale and shipment to the user In testimony whereofl affix my signature in andlcan lbe inserteil in car-wheels without presence of two witnesses. furt ier c iange or a teration. a

Having thusdescribed my invention,Iclaim THEODORE TIMBY' as new and desire to secure by Letters Patent An article of manufacture, comprising a hollow axle provided with wrists and end clo- Witnesses:

(J. W. FOWL R, PARKER H. SWEET, Jr. 

